winform 右下角弹出消息框

[{"title":"（ 113 个子文件 1.18MB ） winform 右下角弹出消息框","children":[{"title":"logo.ico <span style='color:#111;'> 1.12KB </span>","children":null,"spread":false},{"title":"NotifyIconTest.sln <span style='color:#111;'> 1011B </span>","children":null,"spread":false},{"title":"NotifyIconTest.v12.suo <span style='color:#111;'> 47.50KB </span>","children":null,"spread":false},{"title":"MessageForm.resx <span style='color:#111;'> 6.04KB </span>","children":null,"spread":false},{"title":"MainForm.Designer.cs <span style='color:#111;'> 4.60KB </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]